/**
  ******************************************************************************
  * @file    stm32f4xx_ll_rng.h
  * @author  MCD Application Team
  * @brief   Header file of RNG LL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_LL_RNG_H
#define __STM32F4xx_LL_RNG_H

#ifdef __cplusplus
extern "C" {
#endif

    /* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

    /** @addtogroup STM32F4xx_LL_Driver
      * @{
      */

#if defined(RNG)

    /** @defgroup RNG_LL RNG
      * @{
      */

    /* Private types -------------------------------------------------------------*/
    /* Private variables ---------------------------------------------------------*/
    /* Private constants ---------------------------------------------------------*/
    /* Private macros ------------------------------------------------------------*/

    /* Exported types ------------------------------------------------------------*/
    /* Exported constants --------------------------------------------------------*/
    /** @defgroup RNG_LL_Exported_Constants RNG Exported Constants
      * @{
      */

    /** @defgroup RNG_LL_EC_GET_FLAG Get Flags Defines
      * @brief    Flags defines which can be used with LL_RNG_ReadReg function
      * @{
      */
#define LL_RNG_SR_DRDY RNG_SR_DRDY    /*!< Register contains valid random data */
#define LL_RNG_SR_CECS RNG_SR_CECS    /*!< Clock error current status */
#define LL_RNG_SR_SECS RNG_SR_SECS    /*!< Seed error current status */
#define LL_RNG_SR_CEIS RNG_SR_CEIS    /*!< Clock error interrupt status */
#define LL_RNG_SR_SEIS RNG_SR_SEIS    /*!< Seed error interrupt status */
    /**
      * @}
      */

    /** @defgroup RNG_LL_EC_IT IT Defines
      * @brief    IT defines which can be used with LL_RNG_ReadReg and  LL_RNG_WriteReg macros
      * @{
      */
#define LL_RNG_CR_IE   RNG_CR_IE      /*!< RNG Interrupt enable */
    /**
      * @}
      */

    /**
      * @}
      */

    /* Exported macro ------------------------------------------------------------*/
    /** @defgroup RNG_LL_Exported_Macros RNG Exported Macros
      * @{
      */

    /** @defgroup RNG_LL_EM_WRITE_READ Common Write and read registers Macros
      * @{
      */

    /**
      * @brief  Write a value in RNG register
      * @param  __INSTANCE__ RNG Instance
      * @param  __REG__ Register to be written
      * @param  __VALUE__ Value to be written in the register
      * @retval None
      */
#define LL_RNG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))

    /**
      * @brief  Read a value in RNG register
      * @param  __INSTANCE__ RNG Instance
      * @param  __REG__ Register to be read
      * @retval Register value
      */
#define LL_RNG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
    /**
      * @}
      */

    /**
      * @}
      */


    /* Exported functions --------------------------------------------------------*/
    /** @defgroup RNG_LL_Exported_Functions RNG Exported Functions
      * @{
      */
    /** @defgroup RNG_LL_EF_Configuration RNG Configuration functions
      * @{
      */

    /**
      * @brief  Enable Random Number Generation
      * @rmtoll CR           RNGEN         LL_RNG_Enable
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_Enable(RNG_TypeDef *RNGx)
    {
        SET_BIT(RNGx->CR, RNG_CR_RNGEN);
    }

    /**
      * @brief  Disable Random Number Generation
      * @rmtoll CR           RNGEN         LL_RNG_Disable
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_Disable(RNG_TypeDef *RNGx)
    {
        CLEAR_BIT(RNGx->CR, RNG_CR_RNGEN);
    }

    /**
      * @brief  Check if Random Number Generator is enabled
      * @rmtoll CR           RNGEN         LL_RNG_IsEnabled
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsEnabled(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->CR, RNG_CR_RNGEN) == (RNG_CR_RNGEN));
    }

    /**
      * @}
      */

    /** @defgroup RNG_LL_EF_FLAG_Management FLAG Management
      * @{
      */

    /**
      * @brief  Indicate if the RNG Data ready Flag is set or not
      * @rmtoll SR           DRDY          LL_RNG_IsActiveFlag_DRDY
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->SR, RNG_SR_DRDY) == (RNG_SR_DRDY));
    }

    /**
      * @brief  Indicate if the Clock Error Current Status Flag is set or not
      * @rmtoll SR           CECS          LL_RNG_IsActiveFlag_CECS
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->SR, RNG_SR_CECS) == (RNG_SR_CECS));
    }

    /**
      * @brief  Indicate if the Seed Error Current Status Flag is set or not
      * @rmtoll SR           SECS          LL_RNG_IsActiveFlag_SECS
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->SR, RNG_SR_SECS) == (RNG_SR_SECS));
    }

    /**
      * @brief  Indicate if the Clock Error Interrupt Status Flag is set or not
      * @rmtoll SR           CEIS          LL_RNG_IsActiveFlag_CEIS
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->SR, RNG_SR_CEIS) == (RNG_SR_CEIS));
    }

    /**
      * @brief  Indicate if the Seed Error Interrupt Status Flag is set or not
      * @rmtoll SR           SEIS          LL_RNG_IsActiveFlag_SEIS
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->SR, RNG_SR_SEIS) == (RNG_SR_SEIS));
    }

    /**
      * @brief  Clear Clock Error interrupt Status (CEIS) Flag
      * @rmtoll SR           CEIS          LL_RNG_ClearFlag_CEIS
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_ClearFlag_CEIS(RNG_TypeDef *RNGx)
    {
        WRITE_REG(RNGx->SR, ~RNG_SR_CEIS);
    }

    /**
      * @brief  Clear Seed Error interrupt Status (SEIS) Flag
      * @rmtoll SR           SEIS          LL_RNG_ClearFlag_SEIS
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_ClearFlag_SEIS(RNG_TypeDef *RNGx)
    {
        WRITE_REG(RNGx->SR, ~RNG_SR_SEIS);
    }

    /**
      * @}
      */

    /** @defgroup RNG_LL_EF_IT_Management IT Management
      * @{
      */

    /**
      * @brief  Enable Random Number Generator Interrupt
      *         (applies for either Seed error, Clock Error or Data ready interrupts)
      * @rmtoll CR           IE            LL_RNG_EnableIT
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_EnableIT(RNG_TypeDef *RNGx)
    {
        SET_BIT(RNGx->CR, RNG_CR_IE);
    }

    /**
      * @brief  Disable Random Number Generator Interrupt
      *         (applies for either Seed error, Clock Error or Data ready interrupts)
      * @rmtoll CR           IE            LL_RNG_DisableIT
      * @param  RNGx RNG Instance
      * @retval None
      */
    __STATIC_INLINE void LL_RNG_DisableIT(RNG_TypeDef *RNGx)
    {
        CLEAR_BIT(RNGx->CR, RNG_CR_IE);
    }

    /**
      * @brief  Check if Random Number Generator Interrupt is enabled
      *         (applies for either Seed error, Clock Error or Data ready interrupts)
      * @rmtoll CR           IE            LL_RNG_IsEnabledIT
      * @param  RNGx RNG Instance
      * @retval State of bit (1 or 0).
      */
    __STATIC_INLINE uint32_t LL_RNG_IsEnabledIT(RNG_TypeDef *RNGx)
    {
        return (READ_BIT(RNGx->CR, RNG_CR_IE) == (RNG_CR_IE));
    }

    /**
      * @}
      */

    /** @defgroup RNG_LL_EF_Data_Management Data Management
      * @{
      */

    /**
      * @brief  Return32-bit Random Number value
      * @rmtoll DR           RNDATA        LL_RNG_ReadRandData32
      * @param  RNGx RNG Instance
      * @retval Generated 32-bit random value
      */
    __STATIC_INLINE uint32_t LL_RNG_ReadRandData32(RNG_TypeDef *RNGx)
    {
        return (uint32_t)(READ_REG(RNGx->DR));
    }

    /**
      * @}
      */

#if defined(USE_FULL_LL_DRIVER)
    /** @defgroup RNG_LL_EF_Init Initialization and de-initialization functions
      * @{
      */

    ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx);

    /**
      * @}
      */
#endif /* USE_FULL_LL_DRIVER */

    /**
      * @}
      */

    /**
      * @}
      */

#endif /* defined(RNG) */

    /**
      * @}
      */

#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_LL_RNG_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
